@jerry@infosec.exchange I really appreciate you taking the time to write up exactly what the issue is and why it's happening.
I've frequently been the "well meaning white person" on the sidelines wishing I could help well also being on an instance that is extremely good at blocking bad actors.
As you said this is fundamentally a situation between the instance, it's federated neighbors, and the victim, but it still sucks that there is nothing that can be done to help.
Hopefully advocating for new moderation tools and spreading awareness of why this happens does more than nothing to help along this process!